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<a name="asio.reference.io_context.poll.overload2"></a><a class="link" href="overload2.html" title="io_context::poll (2 of 2 overloads)">io_context::poll
          (2 of 2 overloads)</a>
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<p>
            (Deprecated: Use non-error_code overload.) Run the <a class="link" href="../../io_context.html" title="io_context"><code class="computeroutput"><span class="identifier">io_context</span></code></a> object's event processing
            loop to execute ready handlers.
          </p>
<pre class="programlisting"><span class="identifier">count_type</span> <span class="identifier">poll</span><span class="special">(</span>
    <span class="identifier">asio</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&amp;</span> <span class="identifier">ec</span><span class="special">);</span>
</pre>
<p>
            The <code class="computeroutput"><span class="identifier">poll</span><span class="special">()</span></code>
            function runs handlers that are ready to run, without blocking, until
            the <a class="link" href="../../io_context.html" title="io_context"><code class="computeroutput"><span class="identifier">io_context</span></code></a>
            has been stopped or there are no more ready handlers.
          </p>
<h6>
<a name="asio.reference.io_context.poll.overload2.h0"></a>
            <span><a name="asio.reference.io_context.poll.overload2.parameters"></a></span><a class="link" href="overload2.html#asio.reference.io_context.poll.overload2.parameters">Parameters</a>
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<p class="title"><b></b></p>
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<dt><span class="term">ec</span></dt>
<dd><p>
                  Set to indicate what error occurred, if any.
                </p></dd>
</dl>
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<h6>
<a name="asio.reference.io_context.poll.overload2.h1"></a>
            <span><a name="asio.reference.io_context.poll.overload2.return_value"></a></span><a class="link" href="overload2.html#asio.reference.io_context.poll.overload2.return_value">Return
            Value</a>
          </h6>
<p>
            The number of handlers that were executed.
          </p>
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<td align="right"><div class="copyright-footer">Copyright © 2003-2022 Christopher M. Kohlhoff<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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